hi
when writing a sed command as
sed 's/../../..' filename
it takes input as some file,
can a string be given as input as
sed 's/../../..' string

thanx

JyotiC wrote:
> hi
> when writing a sed command as
> sed 's/../../..' filename
> it takes input as some file,
> can a string be given as input as
> sed 's/../../..' string
>

sed -e 's/.../.../..' << [EOF]
string
[EOF]

provided the string doesnot contain [EOF] in it. but you can override
this
by storing the string in a variable.

or we can pipe it:

var='string'
printf '%s\n' "$var" | sed -e 's/../../..'

On 21 Aug 2006 02:43:37 -0700, JyotiC wrote:
> when writing a sed command as
> sed 's/../../..' filename
> it takes input as some file,
> can a string be given as input as
> sed 's/../../..' string
[...]

string='whatever
other line in $string'
printf '%s\n' "$string" | sed 's/.../.../'

But beware that sed will perform substitutions for every line in
$string one after the others (not on the whole $string at once).

Note that expr can be used instead of sed to extract things from
a string.

See also:

awk '
BEGIN {
sub(/foo/, "bar", ARGV[1])
print ARGV[1]
exit(0)
}' "$string"

--
Stephane

On 21 Aug 2006 03:24:43 -0700, Rakesh Sharma wrote:
>
> JyotiC wrote:
>> hi
>> when writing a sed command as
>> sed 's/../../..' filename
>> it takes input as some file,
>> can a string be given as input as
>> sed 's/../../..' string
>>
>
> sed -e 's/.../.../..' << [EOF]
> string
> [EOF]
[...]

I wouldn't use wildcards in the herefile terminator, that's
asking for trouble.

debian's ash (so possibly BSD shs as well) doesn't like it for
instance.

--
Stephane

thanx to all for the
Rakesh Sharma wrote:
> JyotiC wrote:
> > hi
> > when writing a sed command as
> > sed 's/../../..' filename
> > it takes input as some file,
> > can a string be given as input as
> > sed 's/../../..' string
> >
>
> sed -e 's/.../.../..' << [EOF]
> string
> [EOF]
>
> provided the string doesnot contain [EOF] in it. but you can override
> this
> by storing the string in a variable.
>
> or we can pipe it:
>
> var='string'
> printf '%s\n' "$var" | sed -e 's/../../..'